It tells the thriller story of a criminal search between friends who were forced to be involved in drugs because someone was forced to be involved in drugs, and in order to track down the death of a high school classmate who left behind 5 billion insurance money, the friendship between friends deteriorated. Ji Sheng plays Jang Jae-kyung, a serious crime team with a calm and meticulous personality, who chose to die because of his high school classmates